/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */

/*

 * GData Client

 * Copyright (C) Philip Withnall 2010 <philip@tecnocode.co.uk>

 *

 * GData Client is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * GData Client is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with GData Client.  If not, see <http://www.gnu.org/licenses/>.

 */

/**

 * SECTION:gdata-gcontact-language

 * @short_description: gContact language element

 * @stability: Stable

 * @include: gdata/gcontact/gdata-gcontact-language.h

 *

 * #GDataGContactLanguage represents a "language" element from the

 * <ulink type="http" url="http://code.google.com/apis/contacts/docs/3.0/reference.html#gcLanguage">gContact specification</ulink>.

 *

 * Since: 0.7.0

 */

#include <glib.h>

#include <libxml/parser.h>

#include "gdata-gcontact-language.h"

#include "gdata-parsable.h"

#include "gdata-parser.h"

#include "gdata-comparable.h"

static void gdata_gcontact_language_comparable_init (GDataComparableIface *iface);

static void gdata_gcontact_language_finalize (GObject *object);

static void gdata_gcontact_language_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec);

static void gdata_gcontact_language_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec);

static gboolean pre_parse_xml (GDataParsable *parsable, xmlDoc *doc, xmlNode *root_node, gpointer user_data, GError **error);

static void pre_get_xml (GDataParsable *parsable, GString *xml_string);

static void get_namespaces (GDataParsable *parsable, GHashTable *namespaces);

struct _GDataGContactLanguagePrivate {

	gchar *code;

	gchar *label;

};

enum {

	PROP_CODE = 1,

	PROP_LABEL

};

G_DEFINE_TYPE_WITH_CODE (GDataGContactLanguage, gdata_gcontact_language, GDATA_TYPE_PARSABLE,

                         G_IMPLEMENT_INTERFACE (GDATA_TYPE_COMPARABLE, gdata_gcontact_language_comparable_init))

static void

gdata_gcontact_language_class_init (GDataGContactLanguageClass *klass)

{

	GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

	GDataParsableClass *parsable_class = GDATA_PARSABLE_CLASS (klass);

	g_type_class_add_private (klass, sizeof (GDataGContactLanguagePrivate));

	gobject_class->get_property = gdata_gcontact_language_get_property;

	gobject_class->set_property = gdata_gcontact_language_set_property;

	gobject_class->finalize = gdata_gcontact_language_finalize;

	parsable_class->pre_parse_xml = pre_parse_xml;

	parsable_class->pre_get_xml = pre_get_xml;

	parsable_class->get_namespaces = get_namespaces;

	parsable_class->element_name = "language";

	parsable_class->element_namespace = "gContact";

	/**

	 * GDataGContactLanguage:code:

	 *

	 * A code identifying the language, conforming to the IETF BCP 47 specification. It is mutually exclusive with #GDataGContactLanguage:label.

	 *

	 * For more information, see the

	 * <ulink type="http" url="http://code.google.com/apis/contacts/docs/3.0/reference.html#gcLanguage">gContact specification</ulink>.

	 *

	 * Since: 0.7.0

	 */

	g_object_class_install_property (gobject_class, PROP_CODE,

	                                 g_param_spec_string ("code",

	                                                      "Code", "A code identifying the language, conforming to the IETF BCP 47 specification.",

	                                                      NULL,

	                                                      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

	/**

	 * GDataGContactLanguage:label:

	 *

	 * A free-form string that identifies the language. It is mutually exclusive with #GDataGContactLanguage:code.

	 *

	 * For more information, see the

	 * <ulink type="http" url="http://code.google.com/apis/contacts/docs/3.0/reference.html#gcLanguage">gContact specification</ulink>.

	 *

	 * Since: 0.7.0

	 */

	g_object_class_install_property (gobject_class, PROP_LABEL,

	                                 g_param_spec_string ("label",

	                                                      "Label", "A free-form string that identifies the language.",

	                                                      NULL,

	                                                      G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

}

static gint

compare_with (GDataComparable *self, GDataComparable *other)

{

	GDataGContactLanguagePrivate *a = ((GDataGContactLanguage*) self)->priv, *b = ((GDataGContactLanguage*) other)->priv;

	if (g_strcmp0 (a->code, b->code) == 0 && g_strcmp0 (a->label, b->label) == 0)

		return 0;

	return 1;

}

static void

gdata_gcontact_language_comparable_init (GDataComparableIface *iface)

{

	iface->compare_with = compare_with;

}

static void

gdata_gcontact_language_init (GDataGContactLanguage *self)

{

	self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GDATA_TYPE_GCONTACT_LANGUAGE, GDataGContactLanguagePrivate);

}

static void

gdata_gcontact_language_finalize (GObject *object)

{

	GDataGContactLanguagePrivate *priv = GDATA_GCONTACT_LANGUAGE (object)->priv;

	g_free (priv->code);

	g_free (priv->label);

	/* Chain up to the parent class */

	G_OBJECT_CLASS (gdata_gcontact_language_parent_class)->finalize (object);

}

static void

gdata_gcontact_language_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)

{

	GDataGContactLanguagePrivate *priv = GDATA_GCONTACT_LANGUAGE (object)->priv;

	switch (property_id) {

		case PROP_CODE:

			g_value_set_string (value, priv->code);

			break;

		case PROP_LABEL:

			g_value_set_string (value, priv->label);

			break;

		default:

			/* We don't have any other property... */

			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);

			break;

	}

}

static void

gdata_gcontact_language_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)

{

	GDataGContactLanguage *self = GDATA_GCONTACT_LANGUAGE (object);

	switch (property_id) {

		case PROP_CODE:

			gdata_gcontact_language_set_code (self, g_value_get_string (value));

			break;

		case PROP_LABEL:

			gdata_gcontact_language_set_label (self, g_value_get_string (value));

			break;

		default:

			/* We don't have any other property... */

			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);

			break;

	}

}

static gboolean

pre_parse_xml (GDataParsable *parsable, xmlDoc *doc, xmlNode *root_node, gpointer user_data, GError **error)

{

	xmlChar *code, *label;

	GDataGContactLanguagePrivate *priv = GDATA_GCONTACT_LANGUAGE (parsable)->priv;

	code = xmlGetProp (root_node, (xmlChar*) "code");

	label = xmlGetProp (root_node, (xmlChar*) "label");

	if ((code == NULL || *code == '\0') && (label == NULL || *label == '\0')) {

		xmlFree (code);

		xmlFree (label);

		return gdata_parser_error_required_property_missing (root_node, "code", error);

	} else if (code != NULL && label != NULL) {

		/* Can't have both set at once */

		xmlFree (code);

		xmlFree (label);

		return gdata_parser_error_mutexed_properties (root_node, "code", "label", error);

	}

	priv->code = (gchar*) code;

	priv->label = (gchar*) label;

	return TRUE;

}

static void

pre_get_xml (GDataParsable *parsable, GString *xml_string)

{

	GDataGContactLanguagePrivate *priv = GDATA_GCONTACT_LANGUAGE (parsable)->priv;

	if (priv->code != NULL)

		gdata_parser_string_append_escaped (xml_string, " code='", priv->code, "'");

	else if (priv->label != NULL)

		gdata_parser_string_append_escaped (xml_string, " label='", priv->label, "'");

	else

		g_assert_not_reached ();

}

static void

get_namespaces (GDataParsable *parsable, GHashTable *namespaces)

{

	g_hash_table_insert (namespaces, (gchar*) "gContact", (gchar*) "http://schemas.google.com/contact/2008");

}

/**

 * gdata_gcontact_language_new:

 * @code: (allow-none): the language code, or %NULL

 * @label: (allow-none): a free-form label for the language, or %NULL

 *

 * Creates a new #GDataGContactLanguage. More information is available in the 

 * url="http://code.google.com/apis/contacts/docs/3.0/reference.html#gcLanguage">gContact specification</ulink>.

 *

 * Exactly one of @code and @label should be provided; the other must be %NULL.

 *

 * Return value: a new #GDataGContactLanguage; unref with g_object_unref()

 *

 * Since: 0.7.0

 */

GDataGContactLanguage *

gdata_gcontact_language_new (const gchar *code, const gchar *label)

{

	g_return_val_if_fail ((code != NULL && *code != '\0' && label == NULL) || (code == NULL && label != NULL && *label != '\0'), NULL);

	return g_object_new (GDATA_TYPE_GCONTACT_LANGUAGE, "code", code, "label", label, NULL);

}

/**

 * gdata_gcontact_language_get_code:

 * @self: a #GDataGContactLanguage

 *

 * Gets the #GDataGContactLanguage:code property.

 *

 * Return value: the language's code, or %NULL

 *

 * Since: 0.7.0

 */

const gchar *

gdata_gcontact_language_get_code (GDataGContactLanguage *self)

{

	g_return_val_if_fail (GDATA_IS_GCONTACT_LANGUAGE (self), NULL);

	return self->priv->code;

}

/**

 * gdata_gcontact_language_set_code:

 * @self: a #GDataGContactLanguage

 * @code: (allow-none): the new code for the language, or %NULL

 *

 * Sets the #GDataGContactLanguage:code property to @code.

 *

 * If @code is %NULL, the code will be unset. When the #GDataGContactLanguage is used in a query, however,

 * exactly one of #GDataGContactLanguage:code and #GDataGContactLanguage:label must be %NULL.

 *

 * Since: 0.7.0

 */

void

gdata_gcontact_language_set_code (GDataGContactLanguage *self, const gchar *code)

{

	g_return_if_fail (GDATA_IS_GCONTACT_LANGUAGE (self));

	g_return_if_fail (code == NULL || *code != '\0');

	g_free (self->priv->code);

	self->priv->code = g_strdup (code);

	g_object_notify (G_OBJECT (self), "code");

}

/**

 * gdata_gcontact_language_get_label:

 * @self: a #GDataGContactLanguage

 *

 * Gets the #GDataGContactLanguage:label property.

 *

 * Return value: a free-form label for the language, or %NULL

 *

 * Since: 0.7.0

 */

const gchar *

gdata_gcontact_language_get_label (GDataGContactLanguage *self)

{

	g_return_val_if_fail (GDATA_IS_GCONTACT_LANGUAGE (self), NULL);

	return self->priv->label;

}

/**

 * gdata_gcontact_language_set_label:

 * @self: a #GDataGContactLanguage

 * @label: (allow-none): the new free-form label for the language, or %NULL

 *

 * Sets the #GDataGContactLanguage:label property to @label.

 *

 * If @label is %NULL, the label will be unset. When the #GDataGContactLanguage is used in a query, however,

 * exactly one of #GDataGContactLanguage:code and #GDataGContactLanguage:label must be %NULL.

 *

 * Since: 0.7.0

 */

void

gdata_gcontact_language_set_label (GDataGContactLanguage *self, const gchar *label)

{

	g_return_if_fail (GDATA_IS_GCONTACT_LANGUAGE (self));

	g_return_if_fail (label == NULL || *label != '\0');

	g_free (self->priv->label);

	self->priv->label = g_strdup (label);

	g_object_notify (G_OBJECT (self), "label");

}